Hydrosulfite indigo-vat.



rezroee 'lfhe further feeding;n ol'- lahe vets ie efl'eeterl loy means of the hereinlie'fore-rleserihed stoel( vets with the addition of lil-sl; :L hzrllil) :ind Shen ai third (allor bhe quanttiee of the glue Solution Stated in the examples grml so mue'h amino- -nium ehlorid or other ammonium salt is nfld ed' corresponde` to the quantity of free :rh lmli present in the Stoel; mits. hlhould n Vel; after protracted working,n become green, il; should loe sharpened up by the 4addition ol' ,from one-half (l5) liter to two (2) liters ol" hywhen of :i conm :ilrmionolhone (l) gram of indigo per liter nl' vnl', :unl nl; :i temperature of ilty degrees een( lgriule (51)' U.) mul allmline with mnmonhi :is described, is Capable of 2O musing wool to fitr on the lher about lour per cent. ol indigo in one dip, the duration of the operation ljeingaboub twenlly (9.0) nunuiaee.

ln testimony .vhereol l hzrve hereunto ser, 25

my hund in the presence ol two subscribing w itnesses.

l lUlrlUli LMlllG'lUlC'll.

Witnesses:

Jouw L. Hmmm, JAoon Amonio. 

